Answer:
102
Step-by-step explanation:
to do these you need to substitute x with -6
-6(-6)² +4(-6)
solve brackets first
-6(-6*-6) + 4 * -6
= -6 (36) + (-24)
plus + minus is minus
plus * minus is minus
minus * minus is plus
= 126 - 24
= 102
